Sewer gas issue
This week i had terrible sewer gas smell. First with tanks nearly empty and second with tanks about 1/3. It is 2016 winnebago 38Q. The washing machine dumps into black tank. I had one of those fan lik...
Forum Discussion
hostage wrote:rgatijnet1 wrote:
For whatever reason the vent on your roof is capturing the outside air and forcing it down the pipe in to your RV. If you have anything on top of the PVC pipe, try taking it off and see if that fixes the problem. If it does, just get a standard vent cap.
how could that be? the black tank only has one vent and thats the roof out to atmosphere; the only other is the toilet and the seal would have be shot(wont hold water) and surely a owner would know this
and the seal would have to be incredible worn for it to actually escape enough through this seal to cause a problem from driving down the road
He did say that he had a "fan like thing" installed on the roof vent and then the problem started. I said to remove the fan like thing and see if that corrects the problem. Sort of sounds like a common sense thing to do to fix the problem. If something is catching the wind while driving down the highway, it can cause a lot of positive pressure inside the black tank and could easily escape past a seal.
